SPEC
2-3
6F65G11
Specifications
Maintenance specification
Power unit
Item
Unit
Model
E40GMH E40GWH E40JMH E40JWH E40JW
Power unit
Minimum compression
kPa
480 (4.8, 70)
pressure (*1)
(kgf/cm
2
, psi)
Cylinder head
Warpage limit
mm (in)
0.1 (0.0039)
(lines indicate straightedge
position)
Cylinders
Bore size
mm (in)
78.000–78.020 (3.0709–3.0716)
Wear limit
mm (in)
78.100 (3.0700)
Taper limit
mm (in)
0.08 (0.0032)
Out-of-round limit
mm (in)
0.05 (0.0020)
Pistons
Piston diameter (D)
mm (in)
77.940–77.965 (3.0685–3.0695)
Measuring point (H)
mm (in)
10.0 (0.39)
Piston-to-cylinder clearance
mm (in)
0.055–0.060 (0.0022–0.0024)
(limit)
0.110 (0.0043)
Piston pin boss bore
mm (in)
19.904–19.915 (0.7836–0.7841)
Oversize piston
1st
mm (in)
0.25 (0.010)
2nd
mm (in)
0.50 (0.020)
Oversize piston diameter
1st
mm (in)
78.190–78.215 (3.0783–3.0793)
2nd
mm (in)
78.440–78.465 (3.0882–3.0892)
Piston pins
Outside diameter
mm (in)
19.895–19.900 (0.7833–0.7835)
(*1) Measuring conditions:
Ambient temperature 20°C (68°F), wide open throttle, with spark plugs removed from all cylinders.
The figures are for reference only.
Summary of Contents for E40G
Page 1: ...E40J SERVICE MANUAL 6F6 28197 5G 11 E40G ...
Page 4: ......
Page 16: ...GEN INFO 1 11 6F65G11 MEMO ...
Page 28: ...2 11 6F65G11 SPEC MEMO ...
Page 54: ...FUEL 4 13 6F65G11 MEMO ...
Page 101: ...6F65G11 6 4 9 8 7 6 5 4 3 2 1 Special service tools Backlash indicator 90890 06706 ...
Page 120: ...LOWR 6 23 6F65G11 Lower unit Shimming M T 6F660860 ...
Page 199: ......
Page 200: ...YAMAHA MOTOR CO LTD Printed in Japan Jul 2004 0 8 1 E Printed on recycled paper ...